The button has soft rubber part that won't damage your phone screen. It has strong sensitivity that can help you win the game quickly, stably and continuously and bring you excellent game experience. The internal slot design will not affect the side buttons to avoid accidentally pressing the lock screen or volume button during the game. With the mini size, it is easy to carry. Item Name: Metal Game Button Material: ABS, Metal Features: Anti-scratch, Strong Sensitivity, Portable Size: 5cm x 3cm x 2cm/1.97in x 1.18in x 0.79in (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: (Phone Not Included) 2 x Metal Game Buttons